writetome51/error-if-index-not-vali...

Function returns true or false based on whether or not a certain index can exist in a certain array length

Function that inserts new items at a specified index in the array

Function triggers error if a given index, array, or 'howMany' items request is not valid

Returns 1 item from array, accessed by its index. Allows negative index

Moves an item's position in an array

Function receives array index and returns the new index that same item would have if the array's order were reversed

Function receives array index and returns the index it would be if the array's order were reversed